@misc{indiciaec6bdb7074ba8,
  title = {Coal resource occurrence and coal development potential maps of the Pilot Knob Quadrangle, Routt County, Colorado},
  author = {Dames \& Moore},
  year = {1978},
  doi = {10.3133/ofr78623},
  url = {https://pubs.usgs.gov/publication/ofr78623},
  note = {Source identifier: ofr78623}
}